Earthquake with magnitude of ML 2.0 on date 11-05-2021 and time 06:11:56 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.0 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 11-05-2021 04:11:56 (UTC)
  • 11-05-2021 06:11:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.467, 15.455 at 143 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of Messina (238439 inhabitants)
43 Km NW of Reggio di Calabria (183035 inhabitants)
94 Km SW of Lamezia Terme (70714 inhabitants)
98 Km N of Acireale (52622 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire *

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.0 2021-05-11
04:11:56
38.467 15.4553 143 2021-12-29
11:12:16
Bollettino Sismico Italiano INGV 93397811
Reviewed
Rev100
ML 2.0 2021-05-11
04:11:56
38.4783 15.4737 147 2021-05-11
04:32:51
Sala Sismica INGV-Roma 89980861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-11 04:11:56 ± 0.16
Latitude 38.4670 ± 0.0117
Longitude 15.4553 ± 0.0149
Depth (km) 143 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93397811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1545
Semi-minor axis of confidence ellipse (meter) 540
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 138
Circular confidence region, given by single value of horizontal uncertainty (meter) 1550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.20684
Epicentral distance of station farthest from the epicenter (degree) 1.46679
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 93397811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-08-20 19:43:18

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 89980861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-11 04:32:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CELI.HHE. 2021-05-11T04:12:44.32 0.6 undecidable manual S 41 1.2429 133 1.24 28
MN.TIP.HHZ. 2021-05-11T04:12:43.33 0.3 undecidable manual S 55 1.2393 133 0.31 62
IV.SERS.HHZ. 2021-05-11T04:12:41.39 0.3 undecidable manual S 59 1.117 136 0.47 61
IV.CET2.HHZ. 2021-05-11T04:12:40.68 0.3 undecidable manual S 20 1.1295 136 -0.46 61
IV.SELL.HHZ. 2021-05-11T04:12:39.56 0.3 undecidable manual S 60 1.0495 138 -0.27 65
IV.PLAC.HHZ. 2021-05-11T04:12:35.83 0.3 undecidable manual S 91 0.7698 147 0.1 71
IV.SOI.EHZ. 2021-05-11T04:12:33.73 0.3 undecidable manual S 130 0.6133 153 -0.11 75
IV.AIO.HHZ. 2021-05-11T04:12:32.82 0.6 undecidable manual S 199 0.5252 156 -0.11 51
MN.CEL.HHZ. 2021-05-11T04:12:32.13 0.3 undecidable manual S 121 0.4011 161 0.28 74
IV.MTTG.HHZ. 2021-05-11T04:12:32.36 0.6 undecidable manual S 157 0.5018 157 -0.35 48
IV.IVUG.HHZ. 2021-05-11T04:12:31.96 0.3 undecidable manual S 259 0.3741 163 0.3 75
IV.JOPP.HHZ. 2021-05-11T04:12:31.47 0.3 undecidable manual S 67 0.3642 163 -0.12 78
IV.MPNC.HHN. 2021-05-11T04:12:31.29 0.3 undecidable manual S 194 0.3301 165 -0.07 79
IV.IVPL.HNE. 2021-05-11T04:12:31.91 0.3 undecidable manual S 256 0.3831 162 0.19 77
IV.MSRU.HHZ. 2021-05-11T04:12:30.23 0.3 undecidable manual S 168 0.2068 170 -0.48 75
IV.PIPA.HHZ. 2021-05-11T04:12:25.78 0.3 undecidable manual P 46 1.4668 128 -0.09 59
IV.GRIS.HNE. 2021-05-11T04:12:24.08 0.3 undecidable manual P 13 1.3094 131 -0.11 63
IV.CELI.HHE. 2021-05-11T04:12:23.66 0.1 undecidable manual P 41 1.2429 133 0.15 85
MN.TIP.HHZ. 2021-05-11T04:12:23.37 0.1 negative manual P 55 1.2393 133 -0.1 86
IV.CET2.HHZ. 2021-05-11T04:12:22.08 0.1 undecidable manual P 20 1.1295 136 -0.31 84
IV.SERS.HHZ. 2021-05-11T04:12:22.28 0.1 negative manual P 59 1.117 136 0.02 90
IV.HLNI.HHZ. 2021-05-11T04:12:22.90 1.0 undecidable manual P 203 1.2087 134 -0.26 21
IV.SELL.HHZ. 2021-05-11T04:12:21.75 0.1 undecidable manual P 60 1.0495 138 0.12 90
IV.GRI.EHN. 2021-05-11T04:12:20.05 0.3 undecidable manual P 64 0.8328 145 0.3 68
IV.GIZZ.HHN. 2021-05-11T04:12:19.24 1.0 undecidable manual P 49 0.7788 147 -0.1 24
IV.EMSG.HHZ. 2021-05-11T04:12:19.00 0.6 undecidable manual P 212 0.7581 147 -0.18 47
IV.EMCN.HHZ. 2021-05-11T04:12:19.97 0.6 undecidable manual P 206 0.7527 147 0.83 39
IV.PLAC.HHZ. 2021-05-11T04:12:19.22 0.1 negative manual P 91 0.7698 147 -0.04 97
IV.EPIT.HHZ. 2021-05-11T04:12:18.66 0.6 undecidable manual P 206 0.7267 148 -0.28 47
IV.NOV.HHZ. 2021-05-11T04:12:18.20 0.3 undecidable manual P 210 0.5054 157 0.66 66
IV.SOI.EHZ. 2021-05-11T04:12:18.07 0.1 undecidable manual P 130 0.6133 153 -0.1 99
IV.MUCR.HHZ. 2021-05-11T04:12:18.31 0.3 undecidable manual P 227 0.6223 152 0.07 75
IV.MTTG.HHZ. 2021-05-11T04:12:17.71 0.1 undecidable manual P 157 0.5018 157 0.19 100
IV.IVPL.HNE. 2021-05-11T04:12:17.06 0.3 undecidable manual P 256 0.3831 162 0.11 78
IV.FERC.HNN. 2021-05-11T04:12:17.55 0.3 undecidable manual P 91 0.527 156 -0.11 76
IV.AIO.HHZ. 2021-05-11T04:12:17.93 0.3 undecidable manual P 199 0.5252 156 0.28 73
IV.IST3.HNZ. 2021-05-11T04:12:17.23 1.0 undecidable manual P 332 0.3759 163 0.31 25
IV.IVUG.HHZ. 2021-05-11T04:12:16.71 0.3 undecidable manual P 259 0.3741 163 -0.2 76
IV.JOPP.HHZ. 2021-05-11T04:12:16.57 0.1 undecidable manual P 67 0.3642 163 -0.3 100
IV.MPNC.HHN. 2021-05-11T04:12:16.60 0.6 undecidable manual P 194 0.3301 165 -0.14 52
MN.CEL.HHZ. 2021-05-11T04:12:16.83 0.3 undecidable manual P 121 0.4011 161 -0.2 76
IV.MSRU.HHZ. 2021-05-11T04:12:15.88 0.3 undecidable manual P 168 0.2068 170 -0.49 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHN. ML:1.9 4.1040565E-5 0.24 AML other m 2021-05-11T04:12:32.53
MN.CEL.HHN. ML:2 4.961421E-5 0.4608 AML other m 2021-05-11T04:12:32.75
MN.CEL.HNN. ML:2.2 8.3066295E-5 0.5024 AML other m 2021-05-11T04:12:32.50
IV.JOPP.HHE. ML:1.8 3.5326325E-5 0.1408 AML other m 2021-05-11T04:12:33.28
IV.SOI.EHE. ML:1.7 2.5755945E-5 0.4576 AML other m 2021-05-11T04:12:35.29
IV.PLAC.HNE. ML:2 4.53356E-5 0.7008 AML other m 2021-05-11T04:12:36.05
MN.CEL.HHE. ML:2 5.5796785E-5 0.3808 AML other m 2021-05-11T04:12:36.84
MN.CEL.HNE. ML:2.2 9.163331E-5 0.4 AML other m 2021-05-11T04:12:36.65
IV.MTTG.HHE. ML:2 5.6903145E-5 0.6592 AML other m 2021-05-11T04:12:37.35
IV.MTTG.HHN. ML:2.2 8.47E-5 0.5 AML other m 2021-05-11T04:12:38.04
IV.PLAC.HHN. ML:1.9 3.385E-5 0.64 AML other m 2021-05-11T04:12:41.91
IV.SERS.HHN. ML:2 3.54E-5 0.36 AML other m 2021-05-11T04:12:41.60
IV.CET2.HHN. ML:2.7 0.00016203705 0.2592 AML other m 2021-05-11T04:12:41.89
IV.CET2.HHE. ML:2.7 0.0001535 0.36 AML other m 2021-05-11T04:12:41.72
IV.SERS.HHE. ML:1.9 2.53E-5 1.72 AML other m 2021-05-11T04:12:42.01
IV.SERS.HNE. ML:2.2 6.183651E-5 0.8 AML other m 2021-05-11T04:12:43.45
IV.SELL.HNE. ML:2.4 8.472484E-5 0.6816 AML other m 2021-05-11T04:12:43.51
IV.SELL.HHE. ML:1.8 1.77E-5 0.6 AML other m 2021-05-11T04:12:43.83
IV.SELL.HHN. ML:1.4 1.2358745E-5 0.56 AML other m 2021-05-11T04:12:43.65
MN.TIP.HHE. ML:1.7 1.71E-5 1.48 AML other m 2021-05-11T04:12:45.03
MN.TIP.HHN. ML:1.8 2.15E-5 0.38 AML other m 2021-05-11T04:12:45.35
IV.HLNI.HHE. ML:1.7 1.3662136E-5 0.3392 AML other m 2021-05-11T04:12:47.30
IV.HLNI.HHN. ML:1.7 1.65181255E-5 0.5824 AML other m 2021-05-11T04:12:48.10
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download